Title: Enhanced primary treatment of low-concentration municipal wastewater by means of bio-flocculant Pullulan
Abstract: Jar tests were conducted to investigate the performance of enhanced primary treatment processes for low-concentra-tion municipal wastewater from South China by using composite flocculant combined with bio-flocculants Pullulan and poly-aluminum-chloride(PAC). The optimum dosage for composite flocculant and conditions for flocculation were determined. The experimental results indicated that composite flocculant had high efficiency for removing over 95% of turbidity,over 58% of CODCr(chemical oxygen demand determined with potassium dichromate),over 91% of TP(total phosphate),and over 15% of NH3-N. Moreover,it could improve sludge settling and dehydration properties,and decrease the treatment cost.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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